Based on the application condition and the character of the similar device, a safety accommodation ladder, which can flex, fold and lift automatically, can be electric and manual operated, is designed for medium or small sized watercraft to berth at a wharf in storm or in ebb and flow by the use of the Pro/E and ANSYS.

Firstly the introduction of collecting high-tree fruits in alien was made ,according to the actual condition and the requirement of collecting fruits in china,a new type of machine which can collecting high-tree fruits flexiblely was desighed, and the structure parameter of the machine was confirmed .

To lay the cable along the bridge successfully,the technical problems such as bridge expansion and vibration,and grounding should be solved.

The advantages of rigid UPVC pipe are introduced and according to expansion, fixing, noise and other practical questions corresponding preventive and control measures are proposed.

The paper introduced the maintenance procedure of bridge expansion joints and discussed its importance.

The study of anisotropy parameters of new magnetostriction material Tb_(0.27)Dy_(0.73)Fe_(1.95);

Martensitic transformation and magnetostriction in Ni_(52)Mn_(23)Ga_(24.5)Sm_(0.5) alloy;

Giant magnetostriction of melt_spun Fe_(85) Ga_(15) ribbons;

Several measures to improve the quality of installing expansion joint in highway bridge;

Operating principle of Maole expansion joint in Xiushui Bridge and its installation;

Study on wall cracks at expansion joints and reinforcement treatment;